/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.hbase;



import com.bff.gaia.unified.sdk.coders.AtomicCoder;

import com.bff.gaia.unified.sdk.coders.Coder;

import org.apache.hadoop.hbase.client.Result;

import org.apache.hadoop.hbase.protobuf.ProtobufUtil;

import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;



import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.Serializable;



/**

 * A {@link Coder} that serializes and deserializes the {@link Result} objects using {@link

 * ProtobufUtil}.

 */

class HBaseResultCoder extends AtomicCoder<Result> implements Serializable {

  private static final HBaseResultCoder INSTANCE = new HBaseResultCoder();



  private HBaseResultCoder() {}



  public static HBaseResultCoder of() {

    return INSTANCE;

  }



  @Override

  public void encode(Result value, OutputStream outputStream) throws IOException {

    ProtobufUtil.toResult(value).writeDelimitedTo(outputStream);

  }



  @Override

  public Result decode(InputStream inputStream) throws IOException {

    return ProtobufUtil.toResult(ClientProtos.Result.parseDelimitedFrom(inputStream));

  }

}